An iPhone 6 logic board complete with chips was leaked today and one by one the components are being identified. Despite some of the text being blurred, MacRumors has identified the modem which will likely be used for the 4.7-inch iPhone 6.
While photos posted to reveal the existence of an NFC chip from NXP has seen identifying marks on many of the other components blurred, a portion of the text printed on the LTE modem is visible, confirming the board does indeed contain Qualcomm's MDM9625M as had been previously rumored.
The Qualcomm MDM9625M modem is a Category 4 LTE modem which means that it will support speeds of up to 150 Mbps. The modem in the iPhone 5s is a Category 3 modem which only supports speeds of up to 100 Mbps.
The new modem will allow for carrier aggregation to combine channels for more bandwidth. The companion chips to enable this feature have also been spotted on the logic board.
With the MDM9625, this carrier aggregation requires a pair of companion chips, a WTR1625L transceiver chip and a WFR1620 chip. These chips appear to be located on the opposite of the iPhone 6 logic board from the LTE modem itself.